UPDATE: New Version: parts with higher diameter to increase stability!
After some problems that the extruder input-tube was blocking by going into the filament spool these two easy things prevent for such stupid filament breaks.
Installed as seen on the pictures. The filament can be easily mount under the bottom of the thing after install the spool.
Made with PLA, Nylon or T-Glase (picture) for more durability. Works with the original screws or some longer with the same diameter.
Print two of them parallel with 0.3mm layer height at 50mm per second.